3D-MAN: 3D Multi-frame Attention Network for Object Detection
This addresses the problem of underutilizing temporal information in 3D object detection for autonomous driving and robotics, representing a strong specific gain.
The paper tackles 3D object detection by proposing 3D-MAN, a multi-frame attention network that aggregates features from multiple perspectives, achieving state-of-the-art performance on the Waymo Open Dataset.
3D object detection is an important module in autonomous driving and robotics. However, many existing methods focus on using single frames to perform 3D detection, and do not fully utilize information from multiple frames. In this paper, we present 3D-MAN: a 3D multi-frame attention network that effectively aggregates features from multiple perspectives and achieves state-of-the-art performance on Waymo Open Dataset. 3D-MAN first uses a novel fast single-frame detector to produce box proposals. The box proposals and their corresponding feature maps are then stored in a memory bank. We design a multi-view alignment and aggregation module, using attention networks, to extract and aggregate the temporal features stored in the memory bank. This effectively combines the features coming from different perspectives of the scene. We demonstrate the effectiveness of our approach on the large-scale complex Waymo Open Dataset, achieving state-of-the-art results compared to published single-frame and multi-frame methods.